Senior iOS Engineer (Core)

Whoop
Boston
Workplace: OnsiteFull timeUSD 150,000 - 215,000 annuallyFunction: Solutions Engineering & Sales EngineeringSkills: ["Technical planning","Mentoring","Collaboration","Clear communication"]

Build the core foundations behind the WHOOP iOS app, including shared architecture, platform capabilities, and reliability/performance improvements that help product teams ship faster. Lead technical planning for complex, cross-cutting initiatives and deliver member-facing features in Swift. Strengthen quality through testing, observability, crash/performance monitoring, and disciplined releases, while mentoring engineers and shaping shared iOS engineering standards.

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FursaFursa
Whoop
Whoop
2 months ago

Senior iOS Engineer (Core)

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Source: Company careers pageValidated by: Fursa AI
Last checked: 13 hours agoStatus: Live

Job Summary

Build the core foundations behind the WHOOP iOS app, including shared architecture, platform capabilities, and reliability/performance improvements that help product teams ship faster. Lead technical planning for complex, cross-cutting initiatives and deliver member-facing features in Swift. Strengthen quality through testing, observability, crash/performance monitoring, and disciplined releases, while mentoring engineers and shaping shared iOS engineering standards.
Location: Boston
Workplace: Onsite
Employment Type: Full time
Job Function: Solutions Engineering & Sales Engineering
Seniority: Mid level

Key Responsibilities

  • •Lead the design and implementation of core iOS platform capabilities, including app architecture, navigation patterns, shared UI components, networking, persistence, and feature flagging.
  • •Drive technical planning by scoping and sequencing work, identifying dependencies and risks, and communicating tradeoffs and timelines to stakeholders.
  • •Deliver high-quality, member-facing iOS features in Swift with cross-functional partners to ensure measurable outcomes.
  • •Improve reliability, performance, and maintainability through testing, observability, crash and performance monitoring, and disciplined release practices.
  • •Establish and evolve shared engineering standards via code reviews, documentation, and architectural discussions; mentor engineers through pairing and knowledge sharing.

Pay and Benefits

Salary: USD 150,000 - 215,000 annually
Equity and Bonus:Equity

Key Requirements

  • •Significant experience building, testing, debugging, and shipping native iOS applications in production environments.
  • •Strong proficiency with Swift and iOS frameworks (SwiftUI, UIKit, XCTest) and experience with modern architecture patterns (e.g., MVVM).
  • •Experience leading technical planning and delivery for ambiguous, cross-cutting iOS initiatives such as modularization, refactors, performance, or reliability programs.
  • •Strong foundation in iOS performance and reliability fundamentals, including memory management, profiling, and concurrency with Swift Concurrency and/or GCD.
  • •Experience integrating mobile apps with backend services and APIs, including RESTful APIs, authentication flows, and resilient networking.
Experience:Mobile appsIOSWearable technologyConsumer health
Skills:Technical planningMentoringCollaborationClear communication
Tech Stack:SwiftSwiftUIUIKitXCTestMVVMSwift ConcurrencyGCDRESTful APIsAuthentication flowsXcodeGitCIFastlaneSwift Package ManagerCocoaPodsJava

Company Brief

Whoop
Whoop designs and sells a subscription-based wearable fitness tracker and analytics platform that monitors recovery, strain, and sleep to optimize athletic performance and daily health for consumers and professional athletes.
Industry: Wearables
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: Boston, United States
Founded: 2012
WebsiteLinkedIn